On a 1 inch core, this black, 8.5 mil heavy duty, premium grade all-weather vinyl electrical insulating tape maintains conformability for cold weather applications. Inner pack of 1 per canister, 10 per carton with 100 rolls per case. Scotch® Premium Vinyl Electrical Tape Super 88 offers better mechanical/abrasion resistance, and is thicker for quicker build-up. For professional use, this tape combines the flexibility of a PVC backing with excellent electrical insulating properties